The Trading Deadline, the Wild Card and the 1960s San Francisco Giants

Today roughly 26.7% of all teams make the post-season. This is a higher proportion than ever. For most of the 20th century only 12.5% of teams played in the post-season. During the first period of divisional play, 1969-1993, between 15-17% of teams appeared in the post-season. A league where more than one quarter of the teams makes the playoffs is very different than one where one out of six or eight teams do requiring teams to adjust their strategic thinking accordingly.